제출 #1079755

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1079755		quangminh412	Stone Arranging 2 (JOI23_ho_t1)	C++14	100 / 100	66 ms	14976 KiB

Main

#include <bits/stdc++.h>
using namespace std;

/*
  John Watson
  https://codeforces.com/profile/quangminh98

  Mua Code nhu mua Florentino !!
*/

#define faster() ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define ll long long

const int maxn = 2e5 + 9;

int n;
int arr[maxn];
int ans[maxn];
unordered_map<int, int> rightmost;

signed main()
{
	if (fopen("test.inp", "r"))
	{
		freopen("test.inp", "r", stdin);
		freopen("test.out", "w", stdout);
	}
	faster();

	cin >> n;
	
	for (int i = 1; i <= n; i++)
	{
		cin >> arr[i];
		rightmost[arr[i]] = i;
	}
	
	int curpos = 1;
	while (curpos <= n)
	{
		int nxtpos = rightmost[arr[curpos]] + 1;
		for (int i = curpos; i < nxtpos; i++)
			ans[i] = arr[curpos];
		curpos = nxtpos;
	}
	
	for (int i = 1; i <= n; i++)
		cout << ans[i] << '\n';

	return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

Main.cpp: In function 'int main()':
Main.cpp:25:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   25 |   freopen("test.inp", "r", stdin);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:26:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   26 |   freopen("test.out", "w", stdout);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 25 / 25
• Subtask 2: 35 / 35
• Subtask 3: 40 / 40